Logging in
 

I am finding that when I view pages and then attempt to post replies it keeps saying I am not logged in. It just seems if you are idle on the site ie reading a article you get signed out Why?

issue is at your side with how you handle cookies...

As above, clear your cookies, they speed up web pages but also allow your browser to load outdated pages.

I get signed out after something like 15 minutes, but if you tick the remember me box next to the login stuff, you'll be fine.